2004 BMW 325xi Q&A
2004 BMW 325xi Question: turn the key and car won't start! lights and radio work...
turn key lights come on, radio works, etc. but car will not start. doesn't even make a sound. tried to jump it but no luck. any suggestions? - Visitor
Start with a new battery, Just because the lights and radio work doesn't mean the battery is good. Your battery has 6 cells of a little over 2 volts each and if one cell shorts out it will still power some things but won't have the amps needed to engage the starter - Valleyautotech
Take to dealer and reset the ECU it's a security thing with BMW cost bout 110.00. - martin2294